Remortgage in 4 months + looking to put house on market - any watch outs? Do's / Don'ts?

westy_1981

Hi everyone

Keen for thoughts and suggestions - 

Situation; 
Current mortgage - £220K - 24 year term, LTV of approx 40%, tracker of base + 0.14% (so 4.14% currently)

Term finishes end of Dec 2025 - so I'm keen to explore options now and ideally get a good deal locked in. 

Nationwide offering deals inc tracker at base + 0.14% or 2 yr fixed at 3.84% amongst other deals

All pretty straight forward - complexity is added that we would like to put our house on the market in the next month or so. . . . Intent will be to move to a property of similar value (likely +/- 10%)

Know options inc porting mortgage but will be a new mortgage if we move in the next 4-6 months - are there any obvious challenges etc that we can face into now.
Also not sure what would happen if we moved before current term is up (also feels a stretch to move that quick given house not on market yet). . . 

Likelihood is we would remortgage to current property and then move in first quarter of 2026 . . .  

I'm also setting up calls with a couple of mortgage advisors this week / next but wondered on any inputs from this forum. 

Gut feel - spend the next 2-3 months sorting the house, remortgage to a tracker with no ERCs and then once new mortgage in place get house on market, hopefully move quickly and either port tracker or move to a new deal . . .  

Thanks for any advice / guidance    

Brie

Is the Nationwide fixed deal based on the LTV as that may very well change when you move?